Code Modify / Securing a Form


I am looking for a developer that can modify existing legacy code.

We have a php form that uses cgi form processor that captures all the fields and saves it to a text file to a directory.

The file that is written to uses a specific code to related to timecode to create new files (so it doesn't overwrite the file).

The session is done via https.

We would like this code to be more secure so that it is not readable and it prevents bots/scripts from flooding the form.

I would like the code modify to be doing the following:

1) Session needs to expire after x amount of inactivity.

2) Captcha at the end of the form

3) The file that the cgi (may need replacing) writes needs to be encrypted(AES 256bit) and a admin end that will decrypt the file and allow printing of the file.

Skills: HTML, MySQL, PHP, Web Security

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Project ID: #5421262

16 freelancers are bidding on average £26/hour for this job


Hello We went through project description very well .Please provide more details about the project .We are professional website design and development company operating in UK and India. We have 8 years of experience More

£20 GBP / hour
(117 Reviews)

Hello, I am experienced in PHP-MySQL based web applications development and is confident working with you. Kindly view our skills & recently completed jobs - PHP 5(Expert Certified) My Sql,CSS,HTML,XML,Smar More

£18 GBP / hour
(161 Reviews)

Thanks for reading this! I have few recommendations and questions. Please let me know a suitable time for a chat. Regards

£18 GBP / hour
(101 Reviews)

Hi, I'm very interested in Your offer. I have over 10 years of experience as system admin for both windows and linux systems and also 10 plus experience in the field of computer/network and website/server security. I k More

£25 GBP / hour
(35 Reviews)

Hi, I am experienced Software Engineer and I am interested in working on your project. I am very passionate and professional Web Developer, and I can provide clean and quality code. Please check my feedback and contact More

£21 GBP / hour
(22 Reviews)

9+ years experience in programming . 8+ experience in PHP . Knowledge in C, C++, PHP, JavaScript And Cold Fusion• Knowledge in Object oriented programming . Strong logical thinking and learning skills.Worked in the int More

£22 GBP / hour
(77 Reviews)

UK based developer - expert with PHP, sessions and hashing technology. I can help you set the form so it is secure and scalable.

£31 GBP / hour
(18 Reviews)

Hi, Thanks for your post. We are a CMMI Level 3, ISO 9001, 27001 and Microsoft certified outsourced software Development Company Understandingn The work listed in the project description, would need atleast 2 weeks More

£21 GBP / hour
(1 Review)

I have 10 years of experience in Software Development and I have done extensive development in PHP and Java. The work listed in the project description, would need atleast 2 weeks (Considering 40 hour work week). Du More

£18 GBP / hour
(1 Review)

Hello Nick, Hope all is well. I have gone through your description and it's seems to provide more security for your particular form and improve over all webs security. Synapse team will surely complement your need. More

£20 GBP / hour
(3 Reviews)

Hi, We are providing IT services like website design and development, Application development from last 8 yrs and now looking to explore our services, for that we are looking for the outsourcing companies/persons, w More

£30 GBP / hour
(1 Review)

A proposal has not yet been provided

£44 GBP / hour
(1 Review)

Dear Customer, I would like to thank you for your detailed requirement. I am from Pune, India and provides software development, maintenance and testing services to International customers. Based on our previous More

£30 GBP / hour
(0 Reviews)

Dear Sir, We will glad to solve your query and want as life time attachment with you because work is our culture. We will validate your form on your specific condition please send the specific details and send your More

£30 GBP / hour
(0 Reviews)

Hi , We, Veltrod Software Services ( are the fastest and largest growing provider of IT software services for over 25% of the F100 and 100’s of Start-ups and venture funded firms. We are speciali More

£27 GBP / hour
(2 Reviews)

CyberSWIFT LLC is a US based organization based out of Columbus, Ohio with a fully owned development centre in India. This provides our clients with benefits of onsite project management with competitive rates from our More

£30 GBP / hour
(0 Reviews)

Please confirm the scope to give you precise timeline: -1-Session Timeout. --2-Captcha. --3--Encryption. --4--Decryption/priniting functionality. Code will be hidden.No issues.Its better to present with specif More

£30 GBP / hour
(0 Reviews)